"Nick is pretty close to signing to be the Idol judge," a so-called insider tells Us Weekly, which previously got the scoop about Carey's possible involvement. The source adds, "They flew him in to L.A. last week for final meetings," as the show's producers allegedly "think he can help bring that younger demo to the show."

While the Jonas Brothers member is reportedly close to seal the deal, Williams is still negotiating terms of his contract. "Everything is looking good, but they're still working out details," the insider says of the contract negotiations.